Properties Unit Test Method Specifications Melting point C ASTM D938-2005 70-80 Viscosity mm2/s at 100 C ASTM D445-2009 8.5-10 Penetration 0.1mm/100g,5s at 25 C ASTM D1321-2010 20 Oil content ASTM D721-2006 1 Size,20mesh GB/T 6005-2008 90 Packing:25KG Valve bag/980KG Jumbo bag